Public hospitals and large dental chains require clear technical parameters when procuring intraoral scanners. Below is a practical reference template based on real tender requirements (including those from institutions such as Sun Yat-sen Memorial Hospital of Sun Yat-sen University).
Technical Parameter Reference Template
Device Type: Oral digital impression system (intraoral scanner). Class II medical device with valid NMPA registration certificate (for China) or equivalent regulatory clearance in the target market.
Scanning Method: Direct intraoral optical scanning, powder-free.
Imaging Technology: Structured light / laser / confocal (do not specify a single technology to avoid exclusivity).
Scanning Accuracy: Single-tooth accuracy ≤ 10 μm; full-arch accuracy ≤ 50 μm (test reports required).
Repeatability: ≤ 5 μm.
Scanning Speed: ≥ 20 frames per second; full-arch scan ≤ 3 minutes.
Depth of Field: ≥ 18 mm.
Single Scan Field of View: ≥ 18 mm × 16 mm.
Handpiece Weight: ≤ 250 g.
Scanning Tips: Autoclavable (high-temperature/high-pressure sterilization); ≥ 50 sterilization cycles; both standard and mini tips provided.
True-Color Scanning: Supports color 3D models.
Data Formats: Supports open export formats including STL, PLY, and OBJ; no data lock-in.
Software Functions: Intelligent stitching, automatic noise removal, occlusion analysis, margin line marking, data trimming, and measurement tools.
AI Features: Automatic recognition and removal of extraneous data (tongue/lips/fingers); missing-area prompts (if available).
Orthodontic Simulation: Supports tooth segmentation and tooth-arrangement simulation.
Implant Functions: Supports scan-body scanning and implant library matching.
Data Transmission: Wired USB and/or wireless transmission; cloud storage support.
Reporting: Ability to generate oral health examination reports.
Power Supply: Medical-grade power adapter compliant with GB 9706.1 (or equivalent international safety standards).
Standard Configuration: Scanner handpiece, ≥ 2 scanning tips, base/cradle, calibration tool, medical power supply, software license, and optional cart/workstation.
Commercial Terms Reference
Warranty: ≥ 3 years (5 years preferred for higher-end requirements); comprehensive coverage including parts and labor.
Lifetime free software upgrades and no mandatory annual fees.
On-site repair within 72 hours; loaner unit provided during service.
Free installation and training, plus ≥ 1 advanced training session per year.
Free integration with hospital HIS/PACS systems.
Regular free calibration service (≥ 1 time per year).
Important Notes for Tender Writing
Avoid overly specific parameters that effectively point to a single brand (this may violate procurement regulations). Use "≥" or "≤" ranges.
Require submission of registration certificates, test reports, and clinical evaluation data.
In the scoring criteria, assign at least 30% weight to after-sales service and training.
Open-architecture systems that meet or exceed these parameters (powder-free scanning, ≤ 10 μm accuracy, full STL/PLY/OBJ export, lightweight design, and no mandatory software fees) offer both technical compliance and long-term cost control. Aident's AI-30 series is engineered to satisfy the majority of these clinical and commercial requirements while providing lifetime free software updates and transparent support terms.
For detailed product specifications, registration documentation, or assistance with tender parameter alignment, visit:
https://www.aident3d.com/3d-scanner/intraoral-scanner/
or contact the team at https://www.aident3d.com/inquiry / https://www.aident3d.com/certificate
Well-written, non-exclusive technical parameters help ensure fair competition, clinical performance, and reliable long-term support for public hospitals and large clinic networks.
